okie, i'd tried all ways avaliable in the net to try to get my custom ringtone into 1.1.1 but fail.
it always appear although the ringtone is in the 'settings' when i choose it, but there's no sound.
i can see & choose the ringtone, but it onli vibrates... no sounds.

If you use the method as described in the link by mixi92 it works perfect. I have successfully put 7 ringtones on my 1.1.1 iphone and they all work perfect. As he describes the key is the space in the ringtone name. Follow those directions and you shouldn't have any problems. Make sure you use the pre-patched Mecca file. Works perfect and they are still there after syncing with itunes....